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Typical variation of UV index by time of day and time of year, around 40.71 -74.01, based on FastRT UV Calculator [4] The UV index is a linear scale that measures the intensity of UV radiation with respect to sunburn.
Ultraviolet B (UVB) radiation is in the wavelength range 280 to 320 nm. Much of this band is blocked by the Earth's ozone layer, but some penetrates. UVB: triggers the formation of CPD-DNA damage (direct DNA damage), which in turn induces an increased melanin production. [11] is more likely to cause a sunburn than UVA as a result of overexposure.
Ozone therapy is an alternative medical treatment that introduces ozone or ozonides to the body. The United States Food and Drug Administration (FDA) prohibits all medical uses of ozone "in any medical condition for which there is no proof of safety and effectiveness", stating "ozone is a toxic gas with no known useful medical application in ...
In fact, the UV Index Scale was created by the United States Environmental Protection Agency (EPA) to help people make smart, healthy choices about sun exposure, not as a means to garner a tan.
Photo: Shutterstock. Design: Eat This, Not That!Chronic inflammation is not something to take lightly. In fact, research shows that chronic inflammatory diseases are the main cause of mortality in ...
The Fitzpatrick scale (also Fitzpatrick skin typing test; or Fitzpatrick phototyping scale) is a numerical classification schema for human skin color. It was developed in 1975 by American dermatologist Thomas B. Fitzpatrick as a way to estimate the response of different types of skin to ultraviolet (UV) light. [ 2 ]
Medium-wave UV, mostly absorbed by the ozone layer: intermediate UV; Dorno radiation. UVB 280–315 Ultraviolet C 4.43–12.4 0.710–1.987 Short-wave UV, germicidal UV, ionizing radiation at shorter wavelengths, completely absorbed by the ozone layer and atmosphere: hard UV. UVC 100–280 Near ultraviolet 3.10–4.13 0.497–0.662
On the positive side, UV exposure enables the synthesis of vitamin D 3, which is essential for bone health [1] and potentially plays a role in inhibiting certain cancers. [ 2 ] [ 3 ] While vitamin D can also be obtained through dietary supplements, [ 4 ] UV exposure offers benefits such as enhanced subdermal nitric oxide production and improved ...